We have been creating a number of product documents on Coda already and would like to integrated the interface with Confluance which is being used by other teams in the organisation.
I would love to understand if and how this can be done.
Welcome to Atlassian Community. It's nice to meet you!
I'm not familiar with Coda, but I found they are a vendor on Atlassian Marketplace. Coda currently has a Jira Cloud integration, but not Confluence. I recommend you reach out to them via their contact info on that page and check with them if they have any plans to introduce Confluence integration.
I'll also move your case to the Marketplace Apps collection if anyone from Coda participates in this Community and sees your question.
Let me know if you have any trouble contacting Coda via their Marketplace listing!