I did successfully claimed my BCC/BCH from my Copay wallet, I think it may help. For example you have 1 BTC in the wallet A,
First, transfer your BTC to another safe wallet B controlled by you. People say it's better be safe in case anything happen to your BTC.
Second, write down your A wallet seed - 12 words . Download a BCC/BCH wallet , I used Electron-Cash, import the 12 words seeds.
Done , you will see your BCC balance.
分享我是如何获得BCC/BCH.我的比特币存在在线钱包Copay/Bitpay,先把BTC比特币转去另一个新的钱包-避免任何对比特币的风险。 下载Bitcoin cash官网支持的钱包-我用的Electron
cash,把老钱包的12字备份密码导入，你就看见你等量数额的BCC/BCH了。 因为硬件钱包TREZOR最新的固件支持，所以我会把暂时不用的BCC存入TREZOR.