Hi Jeremy!
Thank you for visiting the Moms Panel!
I would think that you most certainly could fit a party of eight at one table at
Cinderella's Royal Table.
You can make your reservation
online - this is a very popular dining experience so make your booking as early as possible - up to 180 days in advance. The system will allow you to make a booking for eight people, if there is availability for your chosen date. There is a chance the system will tell you that you may be seated at more than one table. I would continue with making the booking online if this happens. On the day of your reservation, ensure you arrive early (say, 20 minutes early), and the hostess will seat you at the next available table for your party size. There are only so many large parties reserved for each time slot to allow for this. If you wish to double-check your booking, regarding one or more tables for your party, you could also telephone (407) 939 3463 - but I would definitely make your booking online first, to ensure you secure the date/time you require.
Have a magical time, dining in Cinderella Castle ! If you have any more questions, please come back and ask me - I would be happy to help you plan your magical vacation.