Faraday’ first law of electrolysis states that the mass of the substance (m) deposited or liberated at any electrode is directly proportional to the quantity of electricity or charge (Q) passed.
For a given interval of time an electric current arises whenever there is a flow of charges (for example, electrons) and is defined as the rate at which charge flows. So, the mass of ions deposited during a given interval of time in the process of electrolysis depends on the current at that interval. [Option A]