(N/A) There are two types of electrodes:
$(a)$ Inert electrode: The electrode which does not participate in the chemical reaction and acts only as a source or sink for electrons is called an inert electrode. Inert electrodes do not dissolve or participate in the reaction; their mass remains constant. Examples include $Pt$ and $Au$.
Example: In the electrolysis of $CuCl_{2}$ solution using $Pt$ electrodes,the $Pt$ electrode does not undergo oxidation. Instead,$Cl^{-}$ ions are oxidized at the anode to produce $Cl_{2}$ gas.
$2Cl_{(aq)}^{-} \rightarrow Cl_{2(g)} + 2e^{-}$
$(b)$ Reactive electrode: Electrodes that take part in the chemical reaction are known as reactive electrodes. When these electrodes participate,their atoms may dissolve into the solution or deposit on the electrode,causing a change in their mass. Examples include $Cu$,$Zn$,and $Al$.
Example: When the electrolysis of $CuCl_{2}$ solution is carried out using $Cu$ electrodes,the $Cu$ anode undergoes oxidation,forming $Cu^{2+}$ ions that dissolve into the solution.
$Cu_{(s)} \rightarrow Cu_{(aq)}^{2+} + 2e^{-}$
Conclusion: The products of electrolysis differ depending on whether the electrodes are inert or reactive.