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A metal plate weighting 750g is to be el...

A metal plate weighting 750g is to be electroplated wiwth 0.05% of its weight of silver. If a current of 0.8A is used. Find the time needed for depositing the required weight of silver. `"E.C.E. of silver is" 11.18xx10^(-7)kgC^(-1)`.

A

5 min 32 s

B

6 min 37 s

C

4 min 16 s

D

6 min 10 s

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The correct Answer is:
B
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