Unless someone can relate their personal experience in regards to your questions, I would say to put the address of the first hotel you will be staying at on the form. If you know all the additional hotels, I believe you can attach a sheet and reference the section of the form. But ones plans can change and I don't think this is really needed beyond the first hotel. And once granted admission to Brazil, you can travel where you like withing the country, so only your departure flight information to leave the country would be of interest.