Correct Answer: Option B

Explanation

Cu\(^{2+}\) + 2e- → Cu(s)
2 x 96500C deposits 64g of Cu
∴ x quantity of electricity will deposit 0.08g
x = (2 x 96500 x 0.08)/64 =241.25 coulomb.
Q = It
241.25 = 0.5t
t = 241.25/60 = 8 mins

There is an explanation video available below.

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