Ok kiddo, so a long time ago in a place called Cochin, which is in India, there were some Jewish people who wanted to keep some important words and messages safe. They decided to write them down on big copper plates so they wouldn't get lost or damaged over time.
These copper plates were special because they were written in Hebrew, which is the language that Jewish people use for religious things. The messages on the plates were things like laws, histories, and stories that were important to the Jewish people.
The plates were made out of copper because that material is durable and doesn't break easily. They were also engraved with special designs and decorations that made them look really pretty.
Over time, these copper plates became even more valuable because they showed the history and culture of the Jewish people in Cochin. People would come from all over the world to see them and learn from them.
Today, these Jewish copper plates of Cochin are rare and special treasures that are kept in museums and libraries so that people can still see and learn from them. They remind us of the importance of preserving history and culture, and the stories that make us who we are.