What happens when a current is applied to two electrodes immersed in pure water?

When a current is applied to two electrodes immersed in pure water, electrolysis occurs, leading to the dissociation of water molecules into hydrogen and oxygen gases. At the cathode (negative electrode), reduction takes place, producing hydrogen gas, while at the anode (positive electrode), oxidation occurs, generating oxygen gas. This process also results in the formation of hydroxide ions at the cathode and hydrogen ions at the anode, altering the pH of the surrounding water. However, pure water has very low conductivity, so a significant current may be required to initiate and maintain electrolysis.