Go through the guide and follow step-by-step instructions to make plates using item frames.
In order to use item frames to make plates, you first have to make a simple table by placing two quartz stairs on the ground in the same way as shown in the image below.
After this, add an item frame at the top and then a steak on this item frame.
Then you need to add a stone pressure plate on the item frame. This will complete your design.