Final answer:
The Platform as a Service (PaaS) layer of cloud computing allows for process automation, providing tools and services to simplify application development and deployment.
Step-by-step explanation:
The layer on the cloud that allows process automation is commonly referred to as the Platform as a Service (PaaS) layer. PaaS provides a framework for developers to build upon and create customized applications. It automates the configuration, deployment, and ongoing management of applications, which benefits users by reducing the complexity of managing hardware and software infrastructure, and it typically includes features such as databases, middleware, and development tools that streamline the development process. Cloud platforms like AWS, Microsoft Azure, and Cloud offer PaaS capabilities that facilitate process automation.