Final answer:
The mass of substance deposited on an electrode during electrolysis of a fused salt does not depend on the electrode material; it is influenced by current, temperature, and the presence of other ions.
Step-by-step explanation:
In the electrolysis of a fused salt such as molten sodium chloride (NaCl), the mass of the substance deposited on an electrode does not depend on the electrode material. This is because the electrodes, whether they are made of graphite or another inert material, serve only to carry the current and do not participate directly in the chemical reactions occurring during electrolysis. The three major factors that will influence the mass of the substance deposited are the current (following Faraday's laws of electrolysis), the temperature, and the presence of other ions in the electrolyte solution, as they can compete in the reduction and oxidation reactions.