Can I wear gold plated jewelry in the shower?

The answer is unfortunately: no, you cannot do that! When you shower or take a bath, the jewelry you are wearing, will be immersed under water for a long period of time. And as you can imagine it cannot be good to an item which layer is so prone to chipping.

The longer that gold plated jewelry stays under water, the bigger chances that the layer will fully wear off. And that is not what any owner of such items would want to happen.