The amount of substance liberated on electrodes during electrolysis when $1 \ C$ of electricity is passed,is

How much time is required for the complete decomposition of $2 \ mol$ of $H_2O$ using a current of $4 \ A$?

How much charge in coulombs is present on $1 \, \text{mole}$ of ${N^{3-}}$ ions?

When $1 \ F$ (Faraday) of electricity is passed through an aqueous solution of $CuSO_4$,the amount of $Cu$ deposited is:

The number of moles of electrons passed when a current of $2 \ A$ is passed through a solution of electrolyte for $20 \ minutes$ is

$A$ current of $3 \ A$ is passed through a molten calcium salt for $1 \ hr \ 47 \ min \ 13 \ s$. The mass of calcium deposited is $(Molar \ mass \ of \ Ca = 40 \ g \ mol^{-1})$ (in $g$)