The chemical equation for the reaction where Copper$II$ hydroxide $Cu(OH)2$ decomposes to form Copper$II$ oxide $CuO$, and further decomposes to form Copper $Cu$ is as follows:

2Cu$OH$2 → 2CuO + H2O

2CuO → 2Cu + O2

So, initially, Copper$II$ hydroxide decomposes to form Copper$II$ oxide, and then Copper$II$ oxide decomposes further to form Copper.