The link suggested by M. Elizabeth, to Moda Bake Shop 10" square free patterns (look in the right hand column-scroll down- for free layer cake patterns):
http://www.modabakeshop.com/category/layer-cake
All People Quilt -quilting with 10" squares- free patterns:
http://www.allpeoplequilt.com/quilt-...0-inch-squares
Missouri Star Quilt Co free tutorials using 10" squares:
https://quiltingtutorials.com/tutori...0%22%20squares
more free patterns using 10" layer cake squares:
https://www.thesprucecrafts.com/10-i...tterns-4048355
more on youtube:
https://www.youtube.com/results?sear...ng+layer+cakes
This chart may help you - it says 48 10" blocks are needed to make a queen size quilt that finishes 60" x 80":
https://forum.missouriquiltco.com/ar...p/t-35804.html