The mass of copper deposited from a solution of copper sulphate by a uniform current of $$0.25$$ ampere flowing for one hour is $$0.295\ g$$. Find the equivalent mass of copper. $$(1\ faraday = 96500 coulomb)$$.
The correct option is A$$31.75$$
Formula$$\rightarrow W=\xi It$$
where W=Mass, I=Current, t=Time, $$\xi=Electrochemical \,Equivalent$$