Coin base will likely ban you permanently. They monitor where all the coins go to/from. You might be able to transfer to an intermediate wallet first, but then you have additional transaction fees. My favorite is currently Uphold and Voyager if those are available to you. Another option is Gemini.
If you still want to proceed, just withdraw from coin base to your Paxful BTC address. It's the same as any other BTC transaction.
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