A= atomic weight of Sn=118.7gmol−1 i= current =‌
200W
100V
=2A t= time =5hrs(5×3600s) E=‌
A
n
= equavalent weight of Snn+ n= valency of Sn in the salt w= mass of Sn deposited =11.1g Here, SnO and SnO2 are non-electrolytes (aqueous). So, valency of Sn will be 4 in SnCl4(Sn4++4Cl−).
