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Q$.($a$)$ If aluminum uniformly corrodes in seawater to produce a corrosion current density of $10\backslash$mu A$/$cm$2,$how long would it take for a foil of $0\mathrm{.}4$ mm thickness to dissolve? Both sides of the foil are exposed to the sea water.

$($b$)$ What is the corrosion rate in ipy?

$($c$)$ What is the corrosion rate in g$/($m$^2$ d$)?$

Atomic weight of Al $=26\mathrm{.}98$ g$/$mol$,$ density of Al $=2\mathrm{.}71$ g$/$cm$3.$