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# Electrolysis of Copper Salt for Purification of Copper Metal

CHEM-B17NQW

Copper ($63.55 \textrm{ g/mol}$) can be purified using electrolysis.

What mass of copper metal, in grams, can be produced by applying a current of $7.20 \textrm{ A}$ for $8.00 \textrm{ hours}$ to a solution of copper(II) nitrate?

A

$45.3 \textrm{ g}$

B

$63.5 \textrm{ g}$

C

$68.0 \textrm{ g}$

D

$107 \textrm{ g}$

E

$136 \textrm{ g}$