Depends on the country and bank. I think bank of america does not allow crypto trades so you will not be able to do it. However, it might be possible with one of the smaller american banks instead.
Actually, some banks in other country allow you to use your credit to buy cryptocurrency especially bitcoin. Coinbase is a online wallet which allow the user to use their credit card to buy bitcoin and ethereum. Most of the bank in America always support cryptocurrency because they know how this thing help then to gain more funds.