Coinbase is ending the waitlist for its Coinbase One Card, opening access to hundreds of thousands of Americans that previously registered interest in the card.  The Coinbase One Card, created in partnership with American Express, provides users with up to 4% in Bitcoin rewards depending on how much crypto they hold on the exchange. All card users start with 2% back in Bitcoin, but can earn up to 4% by depositing more cryptocurrency on the platform.  The firm says early card users have added more than $200 ...