Provide examples of how Joyce uses setting, tone or symbolism to express the "coming of age" for the narrator in "Araby."

I would want to answer this question by focusing on
setting, and in particular the description we are given on the bazaar and how it
compares to the fevered imagination of the narrator in terms of what he expected the
bazaar to be like. This of course is one of the central conflicts in the story--the
conflict between the romantic expectations and illusions of the boy and the harsh
reality of life--and the setting of the bazaar helps trigger the epiphany that resolves
this conflict.

Note the way that the narrator imagined the
bazaar before he went there. Combined with the idea that he is a knight-errant on some
noble quest for his true love, the bazaar is imbued with magical
enchantment:

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The syllables of the word Araby were called to me
through the silence in which my soul luxuriated and cast an Eastern enchantment over
me.

The word "Araby" seems to
act like a charm on the narrator, which he likens to an "Eastern enchantment." Yet, when
he arrives at the bazaar, after travelling in a "bare carriage" and descending on an
"improvised wooden platform," the banality of the bazaar is evident. Note the
description of the bazaar we are given when the narrator
enters:

I
passed in quickly through a turnstile, handing a shilling to a weary-looking man. I
found myself in a big hall girdled at half its height by a gallery. Nearly all the
stalls were closed and the greater part of the hall was in darknes. I recognised a
silence like that which pervades a church after a
service.

Araby is actually
dark, silent and ominous, and the only voices the boy can hear are those of two young
women speaking in English accents about some trivial gossip. The irony is evident as the
bazaar is nothing like the boy imagined it to be, just like his romantic dreams and
illusions in reality are nothing, which triggers the epiphany in the final
paragraph.