If a material gets corroded, will it affect the resistivity of that material?

Corrosion is the disintegration of an engineered material into its constituent atoms due to chemical reactions with its surroundings. In the most common use of the word, this means electrochemical oxidation of metals in reaction with an oxidant such as oxygen.

As corrosion changes the material, thus it also changes the resistivity of the material.

But in case of Copper - Copper is known to have very resistance towards corrosion, that is it does not get corroded very easily.